Subwoofer Cabinet
Subwoofer
SR-LASUB-6181-P / SR-LASUB-9181-A
Single 18″ bass-reflex subwoofer — passive or self-powered, for flown array systems.
A single 18-inch bass-reflex subwoofer built to underpin the line array system. The 18-inch high-efficiency woofer uses a 100mm voice coil in a multilayer composite plywood cabinet finished in wear-resistant polyurea paint. The 6181-P is passive; the 9181-A carries its own amplification.
600 W
RMS Passive
2400 W
Peak
99 dB
Sensitivity
133 dB
Peak SPL
18″
Driver
Features
01
High-excursion 18-inch
A 100mm voice-coil woofer moves the air a full-range system cannot, without strain.
02
Bass-reflex loading
Tuned reflex cabinet for full, powerful low end with usable output down to 40Hz.
03
Passive or powered
Choose the passive 6181-P for amplifier-rack systems or the self-powered 9181-A.
04
Tour-grade cabinet
Multilayer composite plywood with wear-resistant polyurea paint.
Specifications — SR-LASUB-6181-P / SR-LASUB-9181-A Range
| Specification | SR-LASUB-6181-P | SR-LASUB-9181-A |
|---|---|---|
| Frequency response (−3 dB) | 45 Hz–250 Hz | 45 Hz–250 Hz |
| Frequency response (−10 dB) | 40 Hz–300 Hz | 40 Hz–300 Hz |
| LF driver | 1 × 18″, 4″ voice coil | 1 × 18″, 4″ voice coil |
| Rated power (RMS) | 600 W | 900 W / 4 Ω |
| Peak power | 2400 W | 1200 W / 4 Ω |
| Sensitivity (1 W / 1 m) | 99 dB | — |
| Maximum SPL (continuous) | 127 dB | 127 dB |
| Maximum SPL (peak) | 133 dB | 133 dB |
| Nominal impedance | 8 Ω | — |
| Input connectors | 2 × Speakon NL4 | XLR |
| Package size | 772 × 650 × 615 mm | 772 × 650 × 615 mm |
| Net weight | 44 kg per piece | 46 kg per piece |
| Gross weight | 49 kg per piece | 51 kg per piece |
Published rated and peak figures for the 9181-A (900 W / 4 Ω rated, 1200 W / 4 Ω peak) warrant confirmation. All figures are nominal, per manufacturer data.
Applications